Raytracing steps

[fire.tiger]

I implemented full antialiasing support :

[Nitrogen]

Thats where I gave up

Spacial partitioning to speed up rendering. I think I went for an octtree, but it's one thing getting the structure setup, it's another getting a ray to traverse it..

[fire.tiger]

:-) nitrogen, how many seconds do you render the same scene with antialiasing, and without antialiasing ? Let's say the scene 512x384 .

I think it will be hard for me to implement kd-tree , but I must do this,
because I have imported a 3DS mesh, that contains only about 4 500 Triangles, and my raytracer is horribly sloow. Really, very slow :?

Also, have you tried the soft shadows ? I Plan to this, but really after
it get more speed

[Nitrogen]

AA takes quite a hit.

Takes 1.25 sec without
Takes 2.25 sec with AA.

I've tried it before but it tends to make your shadows look grainy if you use a random scatter, and if you use a uniform scatter it creates multiple layers of sharp shadows.. No good either way

Unless of course you fire 200 shadow rays for each pixel..

[fire.tiger]

Very good time results my Scene where is 53 objects takes about one minute with antialiasing...
terrible.I have to do something with that speed However here is the result :




I'll try to implement kd-tree optimisation, after that I'll tell how much the speed has increased . Then it's time to do soft shadows and area lights
Then diffuse reflections.